Thinking Allowed

Skateboarding and parkour: Laurie Taylor explores lifestyle sports in the hyper regulated city. Iain Borden, Professor of Architecture and Urban Culture at UCL, considers the origins, history and thrill of skateboarding. They're joined by Thomas Raymen, a senior lecturer in the Social Sciences department at Northumbria University, who followed a group of Newcastle free running enthusiasts, from wall to rooftop, and probed the contradictions between transgression and conformity to the values of consumer capitalism. Revised repeat.Producer: Jayne Egerton

Laurie Taylor explores the increasing use of metrics across diverse aspects of our lives. From education to healthcare, charities to policing, we are are target-driven society which places a heavy emphasis on measuring, arguably at times at the expense of individual professional expertise. Laurie is joined by Jerry Muller, Professor of History at the Catholic University of America in Washington, D.C., who asserts in his book, The Tyranny of Metrics, that we are fixated by metrics, to the extent to which we risk compromising the quality of our lives and most important institutions. He is also joined by Btihaj Ajana, Senior Lecturer in the Department of Digital Humanities at King's College London, who, in the introduction to the book, Metric Culture - Ontologies of Self-Tracking Practices, explains the concept of the 'Quantified Self Movement' - whose philosophy is 'self-knowledge through numbers'. With such a plethora of personal information about ourselves being generated daily are we complicit in creating a culture of surveillance with the blurring of boundaries between the private and public? Stefan Collini, Professor of Intellectual History and English Literature at the University of Cambridge, joins the discussion. Revised repeat.Producer Natalia Fernandez

Experts Julia Lovell, Alpa Shah, and Dennis Tourish delve into the origins and influence of Maoism globally. They discuss Mao Zedong's revolutionary power, the Naxalite guerrilla group in India, and the allure of Maoism to Western socialists despite its darker realities.

Strategic ignorance and knowledge resistance: Laurie Taylor talks to Mikael Klintman, Professor of Sociology at the University of Lund, Sweden about our capacity for resisting insights from others. At all levels of society, he argues, our world is becoming increasingly dominated by an inability, even refusal, to engage with others' ideas. It does not bode well either for democracy or for science. They're joined by Linsey McGoey, Professor of Sociology at the University at Essex, whose new study explores the use of deliberate and wilful ignorance by elites in pursuit of the retention of power - from News International's hacking scandal to the fire at Grenfell Tower.Producer: Jayne Egerton

Rummage & waste: Laurie Taylor talks to Emily Cockayne, Senior Lecturer in Early Modern History at the University of East Anglia, about the overlooked story of our throwaway past, from ladies of the First World War who turned dog hair into yarn to Girl Guides inspired to collect bottle tops by the litter collecting Wombles of Wimbledon. What lessons can be drawn from the past to address urgent questions of our waste today? Patrick O'Hare, Senior Research Fellow in the Department of Social Anthropology at the University of St Andrews, joins the conversation and considers our shifting definitions of waste, from domestic homes in the Global North to the rubbish dumps of Uruguay.Producer: Jayne Egerton

Traders and finance: Daniel Beunza - Associate Professor in the Cass Business School at City, University of London, talks to Laurie Taylor about his study of a Wall Street derivatives-trading room. In particular, he explores how the extensive use of financial models and trading technologies over recent decades has exerted a far-ranging influence on Wall Street , one which should alert us to the risks of moral disengagement caused by a dependence on ‘models’. Also, Anastasia Nesvetailova, Director of City Political Economy Research Centre at City, University of London , argues that financial malpractice is not an anomaly, but part of a business model of finance which involves the sabotaging of competitors, clients and even the state.Producer: Jayne Egerton

Blood - Laurie Taylor explores the metaphorical, as well as material, reality of blood. He's joined by Gil Anidjar, Professor of Religion and Middle Eastern, South Asian, and African studies at Columbia University, and author of a study which explores the relationship between the history of Christianity and blood. What are the social and political implications of the way in which Christian blood come to be associated with purity and kinship? Also, Janet Carsten - Professor of Social and Cultural Anthropology at the University of Edinburgh, considers the extraordinary symbolic power of blood. She traces the multiple meanings of blood as it moves from donors to labs, hospitals, and patients in Penang, Malaysia, telling the stories of blood donors, lab staff and hospital workers. In the process, she shows that blood is a lens for understanding the entanglements of modern life.Producer: Jayne Egerton

Trust in a time of pandemic. Laurie Taylor explores the role of social capital and trust in combatting Covid-19. He's joined by Michael Calnan, Professor of Medical Sociology at the University of Kent and Tannistha Samanta, Assistant Professor at the Indian Institute of Technology in Gandhinagar.Producer: Jayne Egerton

KIDNAP - Millions of people live, travel, and work in areas with significant kidnap risks, yet kidnaps of foreign workers, local VIPs, and tourists are surprisingly rare and the vast majority of abductions are peacefully resolved. Anja Shortland, Reader in Political Economy, King's College London, explores this lucrative but tricky business. Also, Jatin Dua, Assistant Professor of Anthropology at the University of Michigan, examines the upsurge in maritime piracy off the coast of Somalia, taking us inside pirate communities in Somalia. In what ways are modern day pirates connected to longer histories of trade and disputes over protection?Producer: Jayne Egerton

Loneliness - Fay Bound Alberti, Reader in History at the University of York, charts the emergence of loneliness as a contemporary emotional state. Also, Janne Flora, postdoctoral scholar at Aarhus University, explores the deep connections between loneliness and modernity in the Arctic, tracing the history of Greenland and analysing the social dynamics that shaped it. Producer: Jayne Egerton